Mowing machine sections



(No Model.) 2 SheetsSheet 1.

L. L. LAMB.

APPARATUS FOR TEMPERING MOWING MACHINE SEGTIONS.

No. 399,673. Patented Mar. 19, 1889.

Zgmsssss: I 11K, M nvmv ok ATTORNEY (No Model.)

2 Sheets-Sheet 2.

L. L. LAMB.

APPARATUS FOR TEMPERING MOWING MACHINE SEGTIONSL Patented Mar. 19, 1889.

WITNESSES Li; X M IIVVENTOR A TTOR/VEYJ' N. PETERS, Pmn-Liuw m hun wnahin mn, ac.

LEVI L. LAMB, OF AKRON, OHIO, ASSIGNOR TO THE \VHITMAN & BARNES MANUFACTURING COMPANY, OF SAME PLACE.

APPARATUS FORTEMPERING MOWlNC MACHINE SECTIONS.

SPECIFICATION forming part of Letters Patent N0. 399,673, dated March 19, 1889.

Application filed September 2'7, 1888- Serial No. 286,506. (No model.)

To all whom it may concern:

o it known that I, LE VI L. LAMB, of Akron, in the county of Summit and State of Ohio, have invented certain new and Useful I111- provements in Apparatus for Temperin g Mowing-Machine Sections; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same. I My invention relates to mechanism for tempering mowing-machine sections, in which pe culiar so-called multiple tongs are employed for grasping at a time a large number of sections for holding the latter in the tempering-bath; also holders are employed, in which respective holders are set enough sections for supplying a pair of the multiple tongs, the sections in the holder being separated to receive the distended fingers of the tongs, the jaws for such purpose yielding or snubbing back to allow the sections to approach each other as the sect-ions are grasped by closing the tongs.

Hy invention also relates to details of construction hereinafter described, and pointed out in the claims. In tempering 1nowingmachine sections the latter are usually heated in a lead bath and then dropped into a tempering solution, usually strong brine. The jaws or fingers of the tongs, by means of which the sections are successively heated in the lead bath, are supposed to cover such portions of the sectionsas do not require hardening, and by so covering to protect the covered portions from becoming sufiiciently heated to re ceive temper. Previous to my invention mowing-machine sections have usually been tom pered one at a time, and hence the tempering was slow, tedious, and expensive. I have therefore devised means by which a quantity of sections may be tempered at the same time and by the same operation.

In the accompanying drawings, Figure'l. is a plan of multiple tongs with the top plate, 15, removed. Fig. 2 is aside elevation in section on line a; (r, Fig. 1. Figs. 3 and a are end elevation and plan of holder for supplying the tongs with sections.

A represents one of the mowingmachine sections, the same having a broad base, A, with rivet-holes a near the base, all of which are of ordinary construction and well known. The tongs shown in Figs. 1 and 2 are adapted to h old twelve such sections at a time, although the number of sections that the tongs are made to accommodate is not essential. These tongs are constructed as follows:

B B are angle-plates set in reverse order and separated a short distance, as shown, these plates forming what may be called the head of the tongs. Between plates E B are pivoted the hand-levers C, the arms D, and the shanks E of fingers E, arranged as follows: Levers O are pivoted on bolts O, these bolts extending also. through both plates 13. The inner ends of these levers and inside of the fulcrum thereof are slotted at c to receive tongues d of arms D, thelatter being pivoted on bolts D, the latter also extending through plates 13. \Vith such construct-ion it is evident that if the free ends of levers C are moved toward each other the free ends of arms D will approach each other, and. by spreading levers C apart arms D are separated.

Fingers E in form are alike, each having a shank E, and each shank having lugs or trunnions 6 extending in opposite directions and operating in corresponding holes, I), of plates B, except the middle finger, which has also lugs e, engaging holes 7) of plates B, and consequently this middle finger is held stationary and always in position lengthwise of the tongs, while the other fingers may vibrate on their respective trunnions 6. hen either lever Ois moved outward, the short arm thereof moves inward and engages and moves inward the next adjacent shank e, which in turn engages and moves inward its neighboring shank, and so on until the half of the fingers are separated, as shown in the foreground of Fig. 1. Of course, if both levers O are thus moved outward all of the fingers of the tongs will be thus separated. On the other hand, if a lever, O, is moved inward it moves the free end of the co-operating arm D inward, by means of which the free ends of the fingers are moved inward or made to approach each other, as shown in the background, Fig. 1, and the simultaneous inward movement of both levers C will cause all of the fingers of the tongs to approach each other, as in grasping the sections between the fingers.

To recapitulate, by spreading levers O the fingers are separated to receive the sections between them, and by pressing levers O together the fingers are made to grasp and hold the sections. The outturned legs of plates B B, as shown in Fig. 2, form abroad surface for the base of the sections to abut against to hold the sections in line. The free ends of levers C terminate usually in loops 0', and pegs (not shown) may be connected with some stationary support and arranged in such juxtaposition to each other as to engage these loops when the tongs are in position grasping the sections and holding the latter in the lead bath. l/Vhen the sections, by contact with the molten lead, become sufficiently heated, they are by means of the tongs removed from the lead bath and held over the temperingvat, whereupon by opening the tongs the sec tions fall out of the tongs by gravity into the tempering-mixture, the latter, as aforesaid, being usually strong brine. For supplying sections to the tongs I have the following:

G is a base consisting, usually, of a solid plate of metal, approximately of the size and form shown in Fig. 3, with an integral rib, g, extending upwardly and running transversely across the base. To this rib and by means of bolts h are adjustably secured the jaws H H. These jaws receive the sections edgewise between them, the sections having their bases A uppermost, as shown in Figs.3 and 4. As the sections are of different sizes, according to the variety of machines for which they are intended, the jaws H H are made adjustable, so that they can be adjusted to the different sizes of sections. In Fig. 3 and on. the lefthand side thereof the jaw II that is shown is supposed to be of plate metal and riveted to a cast-metal arm,I-I'; but such construction is not at all material, as both the parts H and H can just as well be made of cast metal and integral.

I I are yielding jaws that are pivoted or secured at 2' to jaws I-I. Jaws I along their opposing faces have blunt teeth I, the teeth being spaced so as to receive the edges of the sections at the depression at the base of these teeth, leaving such sections separated to correspond with the distended fingers of the tongs. Jaws I (shown) are supposed to be made of spring-wire bent in the form shown; butthis is not material, as these yielding jaws can be just as well made of plate metal and in several pieces, if so preferred. The fingers of the tongs in their distended position are thrust in between the sections in the holder. The tongs are then closed to grasp the sections, and as the sections are moved toward each other for such purpose jaws I retire or are snubbed back out of the way, andwhen the sections are removed jaws I by their own elasticity return again to their normal position, the teeth thereof overhanging on the inside jaws, H. Usually a number of these holders are employed and kept. supplied with sections, the same being light work, suitable for children. The operator has therefore only to insert the tongs in a holder filled with sections and grasp and remove the latter and place and leave the tongs in position with the sections in the lead bath. The operator then removes the tongs and sections that have been longest in the lead bath, holds the tongs over the brine-vat, and opens the same to drop the sections into the tempering mixture, whereupon the tongs are again supplied from one of the filled holders, and so on, one operator being able to temper a large number of these sections per hour.

\Vhat I claim is 1. In so-called multiple tongs for holding a series of mowing-machine sections, the combination, with hand-levers and arms adapted to co-operate with such levers at the sides of the tongs, substantially as indicated, of a series of fingers pivoted to the head of the tongs between the pair of hand-levers and pair of arms aforesaid, the arrangement of parts being substantially as shown, whereby the fingers are opened and closed by corresponding movements of the hand-levers, substantially as set forth.

2. The combination, with hand-levers and arms adapted to co-operate with such levers,

substantially as indicated, of a series of fingers pivoted to the head of the tongs and provided with projecting shanks, the hand-levers actuating the shanks of the fingers in distending the tongs, and the arms actuating the fingers proper inclosing the tongs, substantially as set forth.

3. The combination, with a pair of angleplates located in reverse position and held separate forming the head of the tongs, substantially as indicated, of hand-levers, arms adapted to co-operate with such levers, and a series of fingers pivotally connected with the angle-plates to form so-called multiple tongs, substantially as set forth.

4. The combination, with tongs adapted to grasp a series of mowing-machine sections, substantially as indicated, of holder for assembling such sections for supplying the tongs, such holder having fixed jaws for receiving the sections, and yielding jaws for holding the sections separated the one from the other to correspond with the distended fingers of the tongs, substantially as set forth.

5. The combination, with base having stationary jaws adjustably secured thereto, of movable spring-actuated jaws mounted on such stationary jaws, such movable jaws having teeth for holding the sections separated, such teeth in the normal or closed position of the movable jaws overhanging the inner faces of the stationary jaws, substantially as set forth.

In testimony, whereof I sign this specification, in the presence of two witnesses, this 26th day of April, 1888.

LEVI L. LAMB. \Nitnesses:

J. A. MUTz, C. S. CoBBs. 

